@article{BAG_1981__12_138212,
     author = {H.-D. GRONAU and H.-H. LARISCH},
     title = {On the {SOMA-cube-puzzle}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {93--96},
     publisher = {mathdoc},
     volume = {12},
     year = {1981},
     url = {http://geodesic.mathdoc.fr/item/BAG_1981__12_138212/}
}